Mount for various instruments, such as measuring apparatus



C. H. H. RODANET MOUNT FOR VARIOUS INSTRUMENTS,

SUCH AS MEASURING APPARATUS Aug. 8, 1950 1 m@ x \F JJHHAI 3H y M M W. 5 v n h n W w T w. mw M /lw N m m w 5 S rf 4 k a Q M m. W h 6 w of M 8 o@ e@ 6N. IH! mb hm. aa. 9N l w a o n w 0., o l. 6 u W o m n. m 7u Ww wm. wm 8 w m m 0 l MQ L i W Q u om, u H wa C 0% .d v 1 Q a, 0 NN Q o. 8 o 2@ 0e 5 R Q 5 000,. m m. N h ONS @of n p. n o 0r C. A v QL -Q m m m E1 n Aug. 8, 1950 c. H. H. RODANET 2,518,068

MOUNT FOR VARIOUS INSTRUMENTS,A SUCH As MEASURING APPARATUS Filed Dec. 19. 1945 -4 Sheets-Sheet 2 Fia.

/n ven- Z or CHA @L Es HIL 1l/Q5 HEMI Rop/mfr Aug- 8, 1950 c. H. H. RoDANET 2,518,068

MOUNT FOR VARIUS INSTRUMENTS,

SUCH As MEASURING APPARATUS Filed Dec. 19. 1945 4 Sheets-Sheet 5 le 26a 2o Afef/WJ Aug. 8, 1950 c. H. H. RODANET 2,518,068 MOUNT FOR VARIOUS INSTRUMENTS,

SUCH As MEASURING APPARATUS File'd Dec. 19. 1945 4 Sheets-Sheet 4 Fie.

ym/XLAQLCH Patented Aug. 8, 1950 MoUNTFoa vaincus msfrnnmanzrs, suon,l

As MEASURING APPARATUS Charles; Hilaire Henri Rodanet, Neuilly sur-Seine,

France;- assig-non to Societe Anonyme Etablissements Edi Jaeger.`

ApplicatonDecemher 19, 1945, lSerial No. 63.5,94`8- Inlrance January 1 0, 1 9515 (Cl. lwm-4:31)

, llliClaims.V

The present invention has -forits obect improvements in mounts for various instruments such for example asvmeasur-ing instruments, and its purpose or industrial result is, o-nthe onehand to simplify the mounting of devices of this kind, and on the other hand'to improve the 'aesthetic effect. By -way ofl example., itis particularly suitable as a combined"mountv for barometers and thermometers.

Other advantageous peculiarities of: the invention will become apparent in the followingdescription, taken with reference to the accompanying. drawings which are given solely by WayY of example, and in which;

Fig. 1 is a front `View offthewhole arrangement mounted.

Fie. 2Ai's a correspondineleit handview in sectionalongthe line I.I,-`II oEaJL Fie.` 3 is a detail.. View onv a., larger scale. than the previous viewsbof themounting of the baIQm.- eter case.

Fig,y 4 is a view, on,` the same scale. as thepre-V vious View,V in sectionY along the line Ivi-IV oi Fig.` 5., of the complete-,movement or thebarome eter.

Fie 5 is a right hand view corresponding to Fig. 4.`

Fig. 6, isa rear. View, with partialcutfaway por--v tions of the thermometer case.

Fie.. 7 is a, left hand, View corresponding to Fig. 6. in section.,

According to the, main characteristic. of the invention the barometer mount comprises, for example,v two bevelled glasses l and i. arranged vertically and engaged in groovesy provided in aV keeper 3 of any desired cross-section, the twoA ends of which are held 'c lose together by means of screws 4 for fixing on :a base El.

'In an advantageous form of construction, which is `applicable, each time it is required to make the movement of the instrument considered fluidtight, it is possible to mount 'the side walls l and 2 of the mount inthe grooves of the 'keeper with the interposition at the bottom of said grooves of a gasket which is preferably resilient and which is formed, for example, by a rubber strip, for the purpose, furthermore, Aof preventing the breakage of the walls l and 2, if they are breakable, during the mounting of the mount.

The rear glass 2 is provided, on the one ileandwith a central cut-away portion V2c', for supporting and centering the case r of .the barometer, and on the other hand with a second rcutfaway portion 2b, placed on the same vertical axis as the irst for housing the case 1 .of the thermometer.

The various'usual graduations are provided on the inner face ofgthe glass 2f concentricallyr to the spindle of the needles 18" and 9 -of the barometer and of the thermometer, whereaslthe'characters which indicate/the variations lof lthe atmospheric pressure, that is to say the increase or `the decrease relatively to the normalyprlessureare provided on the inner face ofthefront, glass I ofthe mount- The rotating ease of the barometer comprises@ deeply stampedY member '6 made of' any appropriate metal amtareferebly of, alight, alley- It is of Circular cross-Settles and its edeeloeeted on the opposite Side to thebotem, is, ilene'd.. 011t-I wardly at 6a to enable it to bear entire/inner, face of the rear glass 2. after the intervention of, e 'friction washer. Il?. mede of cellulose acetate, or of any othermeterial (Eis. 3,),-

The clamping. of` theoase the. arial direction is elected by means4 o; a, ring -Il, which is externally knurled so asy tovfacilitate gripping it and. whichA is engaged and xed in. the, Cese by means of. four headlesssorews l?k which also aer-- mit of the fixing or the. framel [E in, which is mounted the barometer morement which Will be describedhereinafter.

The, bearing of the ring l I, on the outer faceI of the glass 2 is. elected through thel intermediary Qi a, corrugated washer L?, inserted between a cellulose acetate washer 14 abuttingagainst the glass 2V, and a washer t5, madefor ezannpley of metal.

The. corrugations of the resilient washerI 'i3 are arranged in such a as to. ensure. its 'ficf-A tion on the washers L4, and L5, substantially at Opposite points, that isy to( say thatv the. inclination of the.r generatrix of Contact of .each corruga-` tion is reversed relatively. to that :of the fol-lowing corrugation. f

The l"barometer mo. ,vementI is mounted in a frame L6 Vwhich is :assembled by. means ofy screws l] and is xed on a support llt-carryinga tube l,9 for. centering it in a correspandi-ngr bearingsurface of the case 6. l The deformable member, which is subjected to the variations of pressure, is an aneroid capsule 2|)y constructed in the usual manner and ioxed- -bY means of a nut 22 Ona exible blade 2| which is secured to the frame IB, said nut 212` being screwed on a threaded bearingsurface` 23 provided in the centre. of the capsule, and towards the reary of same.

On the front wall of the capsule 20 is iixed a right angle bracket 24-Which bears :against a lever 2.5 lodged. .in the medial part of` a transverse spindle 26 which is vertically pivoted at both its ends on pivots formed by set screws 26a. Said set screws are carried by a plate 21 which is secured to the frame I6 by means of the screws I'I, after the interposition of spacing washers 23.

The works of the movement which comprise a balanced quadrant 29 which meshes with a pinion 30 cut on the centre spindle 3l which carriesl the needle 8, are also pivoted, on the one hand on the plate 2'I and on the other hand on the vertical connecting member or bridge I6a of the frame I6.

The transmission of the deformations of the aneroid capsule 20 to the balanced needle 8, which is shaped as shown in the drawings in such a manner as to enable the value of the atmospheric pressure to be read in millimeters of mercury and in millibars, is obtained by means of a lever 32, fixed at one end on the transverse spindle 26 in a direction perpendicular to the lever 25, and engaged at the other end between two arms provided in the quadrant 29, above the pivotal axis of said quadrant (Figs. 4 and 5) The length and the relative position of the levers 25 and 32 are calculated so as to amplify the deformations of the capsule 20 for the purpose of increasing the sensitivity of the barometer. The constant retraction of the needle 8 of the latter is obtained by means of a spiral spring 33 xed at one end on the spindle 3| and, at the other end on a projection 34, by means of a grubscrew 35.

A screw 36 engaged in a thread of the tube I9 and bearing on the surface 23 of the capsule 20, enables the barometer to be adjusted without taking it apart.

The reading of the pressures is eiected in the following manner: In order to obtain the atmospheric pressure which is prevailing at any altitude, it suices to act on the rotatable case 6 in such a manner as to place the pointer 6b provided on its flanged edge 6a opposite zero on the graduation in meters provided on the inner face of the glass 2 coaxially to the spindle 3| of the barometer. In the case in which it is desired, at a known altitude, to read on the barometer the pressure which exists at sea level, the pointer 6b is placed opposite the graduation corresponding to the altitude in question.

A pointer 31, pivoted on a pivot located in the extension of the spindle 3l of the barometer and supported by the front glass I of the barometer mount, is provided in the usual manner, in order to enable the variations of atmospheric pressure to be observed at two different times.

For this purpose, the pivot which carries the pointer 31 is provided with a knurled knob 38 on the outer side of the transparent wall I, the axial immobilisation of the pointer being obtained by means of a domed washer 39 bearing on the inner face of the glass I (Fig. 2).

The thermometer movement, which is provided on the same vertical axis as the barometer and below same, is contained in a case 4G on which is crimped a bridge 4I (Figs. 6 and 7).

The spindle 43, which is pivoted in the vertical wall of the case 40 and in the bridge 4! and on which is xed the needle 9, carries in its medial part a drum 43a to enable one of the ends of the spiral spring 42 to be crimped, the other end of said spring being fixed on the portion turned back at right angles 44a of resilient keeper 44 engaged a groove of the cut-away portion of the case The thermometer is fixed on the barometer mount, after engagement of the case 40, which externally threaded on its rear portion, in its housing provided on the rear glass 2 by means of a cover 45 after the interposition of a washer 46 made of any appropriate material (Fig. 3).

It is obvious that the embodiment illustrated and described is only given in an indicative and nonlimitative manner. In a general manner, all modiiications or variants which in no way change the main characteristics hereinbefore explained or the purpose pursued, remain included in the scope of the present invention.

What I claim as my invention and desire to secure by Letters Patent is:

1. A mount for measuring instruments and the like, comprising a base, a resiliently deformable keeper having therein a transverse break and at least one internal groove, a wall engaged by its periphery in said groove means for connecting a measuring instrument on said wall, and means for iixing said keeper on said base and for holding the two ends of said keeper close together.

2. A mount for measuring instruments and the like, comprising a base, a resiliently deformable keeper of substantially circular shape having therein a substantially radial transverse break and at least one internal peripheral groove, a wall formed by a disc made of transparent material and engaged by its periphery in said groove keeper, means for connecting at least one measuring instrument on the wall of said mount, and means for iixing said keeper on said base and for holding the two ends of said keeper close together.

3. A mount for measuring instruments and the like, comprising a base, a resiliently deformable keeper of substantially circular shape having therein a substantially radial transverse break and two internal peripheral grooves, two side walls formed by a disc of transparent material such as glass, and engaged by its periphery in said groove of the keeper, a circular gasket made of any suitable material such as rubber and interposed between the periphery of said wall of the mount and the corresponding groove of the keeper in which said wall engages peripherally, means for connecting measuring instruments mounted on the rear wall of said mount, and means for fixing said keeper on said base and for holding the two ends of said keeper close together.

4. A mount for measuring instruments and the like, comprising a base, a resiliently deformable keeper of substantially circular shape having therein a substantially radial transverse break and two internal, spaced, parallel, peripheral grooves, a rear wall formed by a disc made of a transparent material such vas glass, engaged in the rear groove of said keeper and provided with at least one circular perforation adapted to receive a measuring instrument, at least one outer case surrounding said measuring instrument at the periphery and on the rear part thereof, said case engaging in said perforation of said rear wall of said mount, means for holding said case in said perforation, a front wall formed by a disc of vtransparent material such as glass and engaged in the front groove of said keeper, the front of the instrument being viewable through said front wall, and means for xing said keeper on said base and for holding the two ends of said keeper close together in order to fix said front and. rear walls in mutual spaced relationship in the respective grooves of said keeper.

5. A mount for measuring instruments and the like, comprising a base, a resiliently deformable keeper of substantially circular shape having therein a substantially radial transverse break and two internal, .spaced,parallel, peripheral grooves, a rear wall formed by 'a disc made Vof transparent'material such as glass engaged in the rear groove of said keeper and provided with atleast one circular perforation adapted to receive a. measuring instrument, `at least one external case surrounding each of said measuring instruments at the periphery and on the rear part thereof, said case engaging insaid perforation of the rear wall of said mount, a peripheral youtwardly .flanged edge provided on the front part of said case and adapted to bear, when the case is engaged in the perforation, on'the inner or front face of said rear'wall of said mount, a removable ring mounted and fixed on saidlcase and adaptedA to bear on the outer or rear face of said rear wall and thereby clamp said wall against said anged edge of the case, Va'front wall formed by a vdisc of transparent material such as glass and engaged in the front 'groove of said keeper, the front of the instrument being viewable through said Ifront wall, and means for iixing said'keeper on said'base and'for holding the twozends of said keeper close together in order to x said front and rear walls in mutual spaced relationship inthe respective vgroove of said keeper. y

6. A mount for measuring instruments and the like, comprising Aa base, a resiliently deformable keeper of substantially circular shape having therein a substantially radial transverse break andtwo internal, spaced, parallel, peripheralrgrcoves, a rear wall formed by a discmade of transparent material such as glass, engaged in the rear groove of said keeper and provided with at least one circular perforation adapted to receive a measuring instrument, a circular gasket made of any suitable material such as rubber interposed between the periphery of said rear wall of the mount and the corresponding rear groove of the keeper, at least one outer case adapted to surround the measuring instrument at its periphery and on its rear part, said case engaging in said perforation of the rear wall of said mount, a peripheral outwardly flanged edge provided on the front part of said case and adapted to bear, when the case is engaged in the perforation, on the inner or front face of said rear wall of said mount, a removable ring mounted and Xed on said case and adapted to bear on the outer or rear face of said rear wall and thereby clamp said wall against said flanged edge of the case, two friction rings interposed respectively the one between said rear wall of the mount and, said flanged edge of said case, and the other between said rear wall and said removable ring mounted on the case, a front wall formed by a disc of transparent material such as glass and engaged in the front groove of said keeper, the front of the instrument being viewable through said front wall, a circular gasket made of any suitable material such as rubber interposed between the periphery of said front wall of said mount and the corresponding front groove of the keeper, and means for fixing said keeper on said base and for holding the two ends of said keeper close together in order to x said front and rear walls in mutual spaced relationship in the respective grooves of said keeper.

7. A mount for measuring instruments and the like, comprising a base, a resiliently deformable keeper of substantially circular shape having therein a substantially radial transverse break struments at the periphery and on the rear part thereof, each of said cases engaging in one of said perforations of the rear wall of said mount, a peripheral outwardly flanged edge provided at the 'front part of each of said cases and adapted to bear, when the case is engaged in the corresponding perforation of said rear wall, onithe front face of said wall, a removable ring mounted and fixed on each' of said cases and adapted to bear on the o-uter or rear face of said rear wall and thereby clamp said wall against said flanged edge of the correspondingcase in order to hold same, a 'resilient washer interposed between said removable ring and the outer face of said rear Wall, 'friction rings interposed respectively between said resilient washer and the removable ring, between said resilient washer and the rear side wall land between said rear wall land the a'nged edge of said case, an indicating'needle driven by each of said measuring instruments and adapted to move opposite the graduation or graduations provided on the inner face of said rear side wall of the mount, a front wall formed by a disc of transparent material such as glass and engaged in the front groove of thekeeper,the front of the instrument being viewable through said front wall, a circular gasket made of any suitable material such as rubber interposed between the periphery of said front wall of the mount and the corresponding front groove of the keeper, and means for fixing said keeper on said base and for holding the two ends of said keeper close together in order to ix said front and rear walls in mutual spaced relationship in the respective grooves of said keeper.

8. A mount according to claim '7, wherein a pointer is provided at the front end of the case of at least one of the measuring instruments and projects over the front face of the rear wall of said mount opposite a graduation provided thereon, said case being rotatable inside the perforation provided in the rear wall of said mount, whereby the calibration of the instrument is obtained with respect to the graduations provided on said rear wall opposite which the indicating needle of said measuring instrument moves.

9. A mount according to claim 7, wherein at least one pointer is pivoted in the front wall on the rear face thereof, in the extension of the pivotal axis of the indicating needle of at least one of the measuring instruments whereby a comparison may be made of the readings givenby said indicating needle at any times.

10. A mount for measuring instruments and the like, comprising a base, a resiliently deformable keeper of substantially circular shape Vlleva.` ing therein a substantially radial transverse break and two internal, spaced, parallel, peripheral grooves, said keeper being provided, at each of the ends thereof adjacent the break, with a tapped perforation adapted to register with performations provided in said base, screws passcircular gasket made of any suitable materialA s'uch as rubber interposed between the periphery ofsaid rear Wall of the mount and the corresponding rear groove of the keeper, a plurality of outer cases each adapted to surround one of the measuring instruments at the periphery and on the rear part thereof, each of said cases engaging in one of said perforations of the rear wall of said mount, a peripheral outwardly anged edge provided at the iront part of each of said cases and adapted to bear, when the case is engaged in the corresponding perforation of said rear Wall, on the front face of said'wall, a pointer provided on said hanged edge and located op'- posite the graduation adjacent the edge of the corresponding perforation provided in said rear Wall, said case being rotatable in said perforation, whereby said pointer can be brought into any desired position on said graduation, a removable ring mounted and xed on each of said cases and adapted to bear on the outer face of said rear walland thereby clamp said rear wall against said flanged edge of the corresponding case so as to hold same, a resilient Washer interposed between said removable ring, and the outer face 0f said rear wall, friction rings interposed 8 respectively between'said resilient washer 'and the removable ring, between said resilient washer and the rear wall and betweensaid rear Wall andthe outwardly flanged edge of said case, an indicating Vneedle driven by each of said'measuring instruments and adapted to `move opposite the ygraduation or "graduation's Aprovided on the" inner face of said rear side wall of the mount,

a front Wall formed by a disc of transparent materal such as glass and engaged in the front groove of said keeper, the front of the instrument being'viewable through said front Wall, a circular gasket made of any suitable material such as rubber interposed between the periphery of said front Wall'of the mount and the corresponding front groove of the keeper, at least one pointer arranged opposite the rearfaoev of said front wall and pivoted in a perforation of said lfront wall located in the extension of the pivotal avis of the indicating needle of at least one of the measuring instruments, and an actuating knob secured to said pointer and projecting on the outside of saidfront wall so as to enable said pointer to be brought by hand into any desired position, thereby to enable a comparison to be made of the readings given by said indicating needle at any times.

CHARLES HILAIRE HENRI RODANET.

REFERENCES CITED UNITED STATES PA'IENTS Name Date Whitehead Feb. 11, 1936 Number 

